Spring Mvc——Controller中常规方法示例

转载自：/article/5357408.html

一，简单无参数地址访问

首先来看下类标记：

[java] view
plain copy







/**

* Created by LiuHuiChao on 2016/3/21.

*/

@Controller

@RequestMapping("/hello")

public class HelloMvcController {

简单进行类中方法的访问：

[java] view
plain copy







/*简单访问示例*/

@RequestMapping("/mvc")

public String helloMvc() {

return "home";

}

二，使用Servlet api方式获取参数

[java] view
plain copy







/* request方式获取参数 */

@RequestMapping("/views3")

public String viewCourse3(HttpServletRequest request) {

Integer courseId = Integer.valueOf(request.getParameter("courseId"));

System.out.println(courseId);

return "home";

}

三，通过方法参数方式获取

[java] view
plain copy







/* 本方法处理 /hello/view?courseId=123 */

@RequestMapping(value = "/views", method = RequestMethod.GET)

public String viewCourse(@RequestParam("courseId") Integer courseId) {

System.out.println(courseId);

return "home";

}

四，restful 风格URL参数获取

[java] view
plain copy







/* restful 风格URL示例 */

/* 本方法处理 /hello/view/{courseId} */

@RequestMapping(value = "/views/{courseId}", method = RequestMethod.GET)

public String viewCourse2(@PathVariable("courseId") Integer courseId,

Map<String, Object> model) {

System.out.println("restful风格URL示例测试---" + courseId);

// model.put("course",courseId);

return "home";

}

五，重定向操作

[java] view
plain copy







/*重定向操作*/

@RequestMapping(value = "/save", method = RequestMethod.POST)

public String doSave(@ModelAttribute Course course) {

// 再此处进行save操作

return "redirect:views/" + course.getCourseId();// 重定向

}

六，接收上传的文件

[java] view
plain copy







/*上传文件示例*/

@RequestMapping(value="/doUpload",method=RequestMethod.POST)

public String doUploadFile(@RequestParam("file") MultipartFile file){

if(!file.isEmpty()){

System.out.println("请在这里写入对文件的操作");

//写入文件等操作。。。。

}

return "success";

}

另外，还需要在spring mvc的配置文件中加入：

[html] view
plain copy







<!-- 配置上传文件 -->

<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">

<property name="maxUploadSize" value="209715200"/>

<property name="defaultEncoding" value="UTF-8"/>

<property name="resolveLazily" value="true"/><!-- 延迟加载 -->

</bean>